Question

1. what is the main purpose of everglades national park?

a) to protect an ecosystem
b) to study plant and animal life
c) to provide recreational activities
d) to promote tourism

1. according to the video, what are the two things every organism needs to grow and survive?

a) water and sunlight
b) oxygen and food
c) matter and energy
d) shelter and companionship

1. what is the primary source of energy for green plants?

a) water
b) soil
c) sun
d) air

1. what is the role of periphyton in the food chain?

a) producer
b) primary consumer
c) secondary consumer
d) tertiary consumer

1. which organism in the food chain is classified as a carnivore?

a) mosquito larva
b) gambusia
c) great blue heron
d) american alligator

1. what is the term used to describe the american alligator in the food chain?

a) producer
b) primary consumer
c) secondary consumer
d) top predator

1. why are there usually no more than four or five links in a food chain?

a) to prevent overpopulation of organisms
b) to ensure the survival and growth of top predators
c) to maintain a balanced ecosystem
d) to reduce energy loss in the food chain

1. what is the \10 percent rule\ in relation to energy transfer in a food chain?

a) only 10% of the energy is consumed by each organism
b) each organism consumes 10% of its body weight in food
c) only 10% of the chemical energy consumed by an organism is passed on to the next level
d) each organism is limited to consuming 10% of its body weight in prey

1. what is the purpose of a food pyramid in understanding ecosystems?

a) to visualize the flow of matter and energy
b) to determine the population density of organisms
c) to categorize organisms based on their diet
d) to identify the apex predators in an ecosystem

1. what is the term used to describe a complex system of interconnected food chains?

a) food chain
b) food web
c) ecosystem
d) producer - consumer relationship

Explanation:

Question 1:

The Everglades National Park's main purpose is to protect the ecosystem (its unique wetland ecosystem with diverse flora and fauna). Option a aligns with conservation goals of national parks.

For growth and survival, organisms need matter (for building structures) and energy (for metabolic processes). Option c matches this requirement.

Green plants use sunlight for photosynthesis, but the primary energy source is the Sun (as light energy). Wait, no—wait, the options: a) Water, b) Soil, c) Sun, d) Air. Wait, primary energy source for green plants is the Sun (light energy for photosynthesis). But the option c is Sun. Wait, no—wait, the question is primary source of energy. So the Sun (option c) is the primary energy source (as plants convert solar energy to chemical energy).

Answer:

a) To protect an ecosystem

Question 2: